CVE-2021-47817CWE-79

OpenEMR 5.0.2.1 - Remote Code Execution

Medium · published January 21, 2026

CVSS v4.0
4.8
EPSS
1%
Percentile
56.6
In the wild
Unconfirmed
What it is

OpenEMR 5.0.2.1 contains a cross-site scripting vulnerability in user profile parameters that authenticated attackers can chain with a file upload to achieve remote code execution. Attackers can exploit the vulnerability by crafting a malicious payload to download and execute a web shell, enabling remote command execution on the vulnerable OpenEMR instance.

The record
Technical detail
CVSS v4.0
4.8 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
EPSS
0.00813 · 56.6th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-01-21T17:27Z
EPSS history
Timeline
  • 21 JAN 17:27Z
    OpenEMR 5.0.2.1 - Remote Code Execution
    cvelistv5